CME in master regionsAwaitingAssignment
---------------------------------------
Key: HBASE-2169
URL: https://issues.apache.org/jira/browse/HBASE-2169
Project: Hadoop HBase
Issue Type: Bug
Affects Versions: 0.20.3
Reporter: stack
Got this in a regionserver log:
{code}
3970 java.io.IOException: java.io.IOException:
java.util.ConcurrentModificationException
3971 at java.util.TreeMap$PrivateEntryIterator.nextEntry(TreeMap.java:1100)
3972 at java.util.TreeMap$ValueIterator.next(TreeMap.java:1145)
3973 at
org.apache.hadoop.hbase.master.RegionManager.regionsAwaitingAssignment(RegionManager.java:415)
3974 at
org.apache.hadoop.hbase.master.RegionManager.assignRegions(RegionManager.java:196)
3975 at
org.apache.hadoop.hbase.master.ServerManager.processMsgs(ServerManager.java:482)
3976 at
org.apache.hadoop.hbase.master.ServerManager.processRegionServerAllsWell(ServerManager.java:414)
3977 at
org.apache.hadoop.hbase.master.ServerManager.regionServerReport(ServerManager.java:323)
3978 at
org.apache.hadoop.hbase.master.HMaster.regionServerReport(HMaster.java:724)
3979 at sun.reflect.GeneratedMethodAccessor2.invoke(Unknown Source)
3980 at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
3981 at java.lang.reflect.Method.invoke(Method.java:597)
3982 at org.apache.hadoop.hbase.ipc.HBaseRPC$Server.call(HBaseRPC.java:652)
3983 at
org.apache.hadoop.hbase.ipc.HBaseServer$Handler.run(HBaseServer.java:915)
3984
3985 at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
3986 at
sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:39)
3987 at
sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27)
3988 at java.lang.reflect.Constructor.newInstance(Constructor.java:513)
3989 at
org.apache.hadoop.hbase.RemoteExceptionHandler.decodeRemoteException(RemoteExceptionHandler.java:94)
3990 at
org.apache.hadoop.hbase.RemoteExceptionHandler.checkThrowable(RemoteExceptionHandler.java:48)
3991 at
org.apache.hadoop.hbase.RemoteExceptionHandler.checkIOException(RemoteExceptionHandler.java:66)
3992 at
org.apache.hadoop.hbase.regionserver.HRegionServer.run(HRegionServer.java:574)
3993 at java.lang.Thread.run(Thread.java:619)
{code}
The regionserver was crashing and burning at the time but still.
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